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510(k) Data Aggregation
(210 days)
002); Tunneling KIT CH8 (090516-001); Tunneling KIT CH12 (090727-001)
Regulation Number: 21 CFR 882.1620
device |
| Classification Name | Device, Monitoring, Intracranial Pressure |
| Regulation Number | 882.1620
The NEUROVENT is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP).
The NEUROVENT IFD-S is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP).
The NEUROVENT IFD-R is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP).
The NEUROVENT-P is indicated for use in parenchymal pressure monitoring and can be used for the measurement of the intracranial pressure (ICP).
The NEUROVENT-PX is indicated for use in parenchymal pressure monitoring and can be used for the measurement of the intracranial pressure (ICP).
The NEUROVENT-P-TEMP is indicated for use in parenchymal pressure monitoring and can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature.
The NEUROVENT-TEMP is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature.
The NEUROVENT-TEMP IFD-S is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature.
The NEUROVENT-TEMP-IFD-R is indicated for use in ventricular pressure monitoring and cerebrospinal fluid drainage applications. It can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature.
The NEUROVENT-PTO is indicated for use in parenchymal pressure monitoring and can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature. Additional measurement of the oxygen partial pressure is an adjunct monitor of trends indicating the perfusion status of cerebral tissue local to sensor placement. The measured values are relative within an individual and should not be used as the sole basis for decisions as to diagnosis or therapy.
The NEUROVENT-PTO-2L is indicated for use in parenchymal pressure monitoring and can be used for the measurement of the intracranial pressure (ICP). Additional measurement of the brain temperature allows the direct measurement of the cerebral tissue temperature. Additional measurement of the oxygen partial pressure is an adjunct monitor of trends indicating the perfusion status of cerebral tissue local to sensor placement. The measured values are relative within an individual and should not be used as the sole basis for decisions as to diagnosis or therapy.
The BOLT(-DRILL) KITs are indicated to provide a cranial access for RAUMEDIC neurosurgical precision pressure catheters of the RAUMEDIC NEUROMONITORING-SYSTEM.
The DRILL KITs are indicated to provide a cranial access for RAUMEDIC neurosurgical precision pressure catheters of the RAUMEDIC NEUROMONITORING-SYSTEM.
The Tunneling KITs are indicated to provide a cranial access for catheters of the RAUMEDIC NEUROMONITORING-SYSTEM.
The RAUMEDIC® NEUROMONITORING-SYSTEM consists of several different models of probes and probe catheters capable of performing one or several different functions:
- Models with a dedicated lumen can be used for drainage of cerebrospinal fluid (CSF).
- Models equipped with ICP sensors can determine the level and change in intracranial pressure (ICP).
- Models equipped with temperature thermistors can monitor intracranial temperature.
- Models equipped with fiber optic sensors can monitor partial tissue oxygen pressure (ptiO2).
The RAUMEDIC® NEUROMONITORING-SYSTEM is intended to be used in conjunction with previously cleared RAUMEDIC® EASY logO Monitor (K130529), RAUMEDIC® MPR2 logO DATALOGGER (K171666), RAUMEDIC® NPS3 (K103206) or RAUMEDIC® NPS2 X (Brand name for NPS2 cleared in K103206).
The RAUMEDIC® NEUROMONITORING-SYSTEM includes components needed to facilitate the surgical implantation of NEUROVENT® catheters.
The RAUMEDIC® NEUROMONITORING-SYSTEM can be used in MR environment under specific constraints (MR conditional). Those constraints vary by device type, implantation method (bolting or tunneling), and magnetic field strength (1.5 or 3.0 Tesla).
The provided FDA 510(k) clearance letter for NEUROVENT Devices does not contain the specific details required to describe the acceptance criteria and the study that proves the device meets those criteria, particularly for performance metrics.
The document primarily focuses on:
- Device Identification: Listing all device names, regulation numbers, classification, and product codes.
- Regulatory Equivalence: Stating that the device is substantially equivalent to previously cleared predicate devices based on intended use, indications for use, and technological characteristics.
- Intended Use/Indications for Use: Detailed descriptions of what each NEUROVENT component is used for (e.g., ICP monitoring, CSF drainage, brain temperature, tissue oxygen partial pressure).
- MR Safety Testing: A list of
ASTM
andISO/TS
standards used to confirm the device's MR conditional status, along with the specific tests performed (magnetically induced displacement force, torque, image artifacts, heating, malfunction for various fields).
Crucially, the document explicitly states: "Based on performance testing and the available information concerning the referenced comparison devices, the RAUMEDIC® NEUROMONITORING-SYSTEM is equivalent in that: - The devices have the same intended use and indication for use. - Performance characteristics are suitable for designated indications for use."
However, it does NOT provide:
- A table of specific numerical acceptance criteria (e.g., ICP accuracy within X mmHg, temperature accuracy within Y °C, ptiO2 accuracy within Z mmHg).
- The reported device performance metrics against those criteria.
- Details about the "performance testing" beyond the MR safety tests. This implies that the performance characteristics (accuracy, precision, etc., for measuring ICP, temperature, ptiO2) were either derived from the predicate devices, established using bench testing, or considered suitable without presenting detailed clinical performance data in this 510(k) summary. Given the device type, it's highly likely a combination of bench and possibly animal/cadaveric testing, as well as reliance on the long-established performance of similar predicate devices, was used.
- Information about clinical study design. There is no mention of human subject data, test sets, training sets, ground truth establishment, expert adjudication, or MRMC studies. The phrases "anticipated clinical performance" and "does not raise new issues of safety or effectiveness" suggest reliance on the substantial equivalence principle rather than novel clinical trial data.
Therefore, based solely on the provided text, I cannot complete the requested information for acceptance criteria and the study proving the device meets them, beyond the MR safety aspects.
I will indicate "Not provided in the document" for sections where the information is missing.
1. A table of acceptance criteria and the reported device performance
Performance Parameter | Acceptance Criteria (from document) | Reported Device Performance (from document) |
---|---|---|
Intracranial Pressure (ICP) Monitoring Accuracy | Not explicitly provided beyond "suitable for designated indications for use" and "equivalent to predicates". | Not explicitly provided (implied to be equivalent to predicate devices). |
Brain Temperature (Temp) Monitoring Accuracy | Not explicitly provided beyond "suitable for designated indications for use" and "equivalent to predicates". | Not explicitly provided (implied to be equivalent to predicate devices). |
Oxygen Partial Pressure (ptiO2) Monitoring Accuracy | Not explicitly provided beyond "suitable for designated indications for use" and "equivalent to predicates". | Not explicitly provided (implied to be equivalent to predicate devices). |
Magnetically Induced Displacement Force | "tested and confirmed as MR conditional" (implied compliance with ASTM F 2052-15) | "tested and confirmed as MR conditional" |
Magnetically Induced Torque | "tested and confirmed as MR conditional" (implied compliance with ASTM F2213-06) | "tested and confirmed as MR conditional" |
Image Artifacts | "tested and confirmed as MR conditional" (implied compliance with ASTM F2119-07) | "tested and confirmed as MR conditional" |
Gradient-induced Heating | "tested and confirmed as MR conditional" (implied compliance with ISO/TS 10974:2018, Clause 9) | "tested and confirmed as MR conditional" |
Gradient-induced Malfunction | "tested and confirmed as MR conditional" (implied compliance with ISO/TS 10974:2018, Clause 16) | "tested and confirmed as MR conditional" |
RF-induced Heating | "tested and confirmed as MR conditional" (implied compliance with ISO/TS 10974:2018, Clause 8, Tier 3) | "tested and confirmed as MR conditional" |
RF-induced Malfunction | "tested and confirmed as MR conditional" (implied compliance with ISO/TS 10974:2018, Clause 15) | "tested and confirmed as MR conditional" |
Combined Fields | "tested and confirmed as MR conditional" (implied compliance with ISO/TS 10974:2018, Clause 17) | "tested and confirmed as MR conditional" |
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
- Sample Size for test set: Not provided in the document. The document primarily refers to "performance testing" and "MR safety requirements" being "tested and confirmed" to meet standards, rather than a clinical test set from human subjects.
- Data provenance: Not provided. The MR safety tests are likely laboratory-based.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
- Not applicable/Not provided. The document does not describe a study involving expert-established ground truth for performance evaluation of vital sign monitoring. The evaluation methodology focuses on substantial equivalence and laboratory testing for MR compatibility.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
- Not applicable/Not provided.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
- Not applicable. This device is a monitoring system and a kit for surgical access, not an AI-assisted diagnostic tool for human readers.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- Not applicable. The performance evaluation discussed pertains to the physical and functional aspects of the hardware (catheters, sensors, and their compatibility with MR environments), not a standalone algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
- For the MR safety testing, the "ground truth" would be established by the specifications and measurement techniques defined in the referenced ASTM and ISO/TS standards.
- For the core physiological measurements (ICP, temp, ptiO2), the "ground truth" would typically refer to the accuracy of the sensors against calibrated reference standards in laboratory or animal models. This specific detail is not provided, but it's implied compliance with recognized industry standards or internal validation that is deemed "suitable for designated indications for use" and "equivalent."
8. The sample size for the training set
- Not applicable. The document does not describe the use of machine learning or AI, and therefore, no "training set."
9. How the ground truth for the training set was established
- Not applicable.
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(115 days)
Trade/Device Name: B4C System with BcSs-PICNIW-2000 sensor model Regulation Number: 21 CFR 882.1620
|
| Regulation: | 882.1620
The B4C System is intended for the monitoring of variation in intracranial pressure in patients with suspected alteration of intracranial pressure (ICP) or change in intracranial compliance, by providing surrogate ICP waveforms and associated parameters (estimated P2/P1 ratio, normalized Time-to-Peak, derived useful ICP pulses and cardiac pulses) for interpretation.
The B4C System is a non-invasive device intended for monitoring of variation in intracranial pressure including patients with suspected alteration of intracranial pressure (ICP) or change in intracranial compliance. It consists of a sensor with Bluetooth wireless module, headband, mobile device software application, receiver, charger, as well as processing and analytical software. The subject of this 510(k) is to introduce an additional sensor, model BcSs-PICNIW-2000, that is compatible with the existing B4C System (K201989). The BcSs-PICNIW-2000 sensor consists of a piezoelectric fixed on a circular base that is supported on a headband placed over the patient's head. The skull pulsation is sensed by the fixed piezoelectric. Users may use either the existing sensor with the B4C System. During monitoring sessions, either sensor continuously transmits the Mobile App via Bluetooth connection and then to the analytical software component, Physio Core, to perform signal processing. The processed information is then sent back to the Mobile App in the form of minute graphs of waveform derived parameters as well as a report with additional waveform information. Like the predicate sensor, the proposed sensor does not measure absolute intracranial pressure values, but continues to produce surrogate waveform morphology, its trend, and associated parameters reflecting changes in ICP. The B4C System and surrogate waveform and associated outputs do not substitute ICP monitoring methods when measurement of the absolute value of ICP is required to make a clinical decision.
The sensor is supported on a headband worn by the patient, such that the sensor is in contact with the scalp and is perpendicularly positioned in the temporoparietal transition, 2 inches (5-6 cm) above the entrance of the external auditory canal on the coronal plane. Slight pressure is applied so that the sensor maintains contact with the scalp throughout the monitoring session. The sensor continuously records and transfers acquired data to the B4C analytical and processing software, and back to the mobile device application or to a compatible multi-parameter monitor that has piezoresistive pressure transducer sensitivities of 5uV/Vex/mmHg or greater and automatic amplitude window adjustment capability via a paired receiver. Data is transferred wirelessly via Bluetooth connection between sensor and mobile application and HTTPS protocol between mobile application and analytics software. The clinician may view the visualized waveform on the mobile device along with real-time waveform, minute graphs, intermediate, or final reports of surrogate waveform and associated parameters including surrogate waveform trend line, average waveform per minute and estimated P2/P1 ratio, normalized time to peak, as well as derived useful ICP pulses and cardiac pulses. Alternatively, with a supplied dongle, a paired patient monitor's inherent software interprets the signal received from the B4C System's sensor and displays a surrogate waveform that allows for viewing the same ICP waveform on the monitor's display. Clinicians review the B4C System outputs to assess patients with suspected intracranial hypertension or changes in intracranial compliance based on the characteristics Percussion (P1), Tidal (P2,), and Dicrotic (P3) peaks of the waveform morphology and associated parameters.
The B4C System is not intended to be a standalone diagnostic tool. The surrogate waveform and associated parameter outputs do not replace a comprehensive clinical evaluation, but only provide an element for preliminary assessment. The clinician is responsible for determining the additional clinical information that may be required to make a diagnosis.
The provided text describes the 510(k) premarket notification for the B4C System, with a new sensor model (BcSs-PICNIW-2000). The focus of this submission is to demonstrate substantial equivalence to the existing B4C System (K201989). The document primarily outlines the comparison between the new sensor and the predicate device, and the non-clinical performance data to support this claim.
Based on the provided text, there is no information regarding acceptance criteria outlined as specific metrics (e.g., sensitivity, specificity, accuracy) for the device's performance in a clinical study setting. The document emphasizes non-clinical performance data to demonstrate a new sensor model is substantially equivalent to a previously cleared device.
Therefore, for the purpose of answering your request, I will extract the information related to the non-clinical performance data which serves as the "study" proving the device meets the "acceptance criteria" for substantial equivalence. The acceptance criteria here are implicitly showing that the new sensor performs comparably to the predicate device and meets established safety and performance standards.
Here's the breakdown of the information based on your request, extracted from the provided text:
Acceptance Criteria and Device Performance for New Sensor (BcSs-PICNIW-2000)
The "acceptance criteria" in this context are primarily derived from demonstrating that the new BcSs-PICNIW-2000 sensor, when integrated into the B4C System, maintains comparable performance, safety, and effectiveness to its predicate device (B4C System K201989). This is achieved through non-clinical testing, ensuring the differences do not raise new questions of safety and effectiveness.
1. Table of Acceptance Criteria and Reported Device Performance
Acceptance Criteria (Implicit for Substantial Equivalence) | Reported Device Performance (Non-Clinical) |
---|---|
Biocompatibility: Device materials are safe for patient contact. | The BcSs-PICNIW-2000 is comprised of the same materials as the predicate device sensor. A biological risk assessment was provided in lieu of repeating testing. (Implies acceptance based on predicate's known safety) |
Electrical Safety: Device meets electrical safety standards. | IEC 60601-1 / ANSI AAMI ES 60601-1: Pass |
Electromagnetic Compatibility (EMC): Device operates without interference and is not susceptible to interference. | IEC 60601-1-2: Pass |
AAMI TIR69: Testing not required based on risk assessment (Implies acceptance based on risk assessment, indicating no new EMC concerns). | |
Disinfection: Device can be reprocessed safely and effectively. | The BcSs-PICNIW-2000 is intended to be reprocessed according to the same methods as the predicate device sensor. Reprocessing validation was not required. (Implies acceptance based on predicate's established reprocessing methods). |
Monitor Compatibility: New sensor works with existing monitor/receiver. | There are no changes to the predicate device receiver and wireless communication protocol. Monitor compatibility testing was not repeated. (Implies acceptance as existing compatibility is maintained). |
Stability and Reproducibility: Device provides stable and consistent ICP waveform outputs. | Demonstration of stability, repeatability, and reproducibility: Pass (This is the most direct "performance" metric mentioned for the new sensor's output comparable to the predicate's wired sensor). |
Software Verification and Validation: Software meets all requirements. | Demonstrate that all software requirements were appropriately implemented in the software. Pass. (Implies acceptance that the minor software updates do not negatively impact functionality, aligning with existing system software performance). |
Overall substantial equivalence: Differences do not raise new questions of safety or effectiveness. | The document concludes: "Based on results of the performance testing and substantial equivalence comparison, the B4C System maintains the same intended use as the predicate device and the information presented is sufficient to determine that the subject device is substantially equivalent to the predicate device." (Overall acceptance). |
2. Sample size used for the test set and the data provenance:
- Sample Size: The document does not specify a "sample size" in terms of patient data for a clinical test set. The reported "performance data" is non-clinical bench testing and verification/validation.
- Data Provenance: The data provenance for these non-clinical tests is not explicitly stated (e.g., country of origin, retrospective/prospective). However, such testing is typically controlled laboratory or engineering testing.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not Applicable. As the reported data is non-clinical bench testing and verification/validation, it does not involve human experts establishing "ground truth" for patient data in the way a clinical study would. The "ground truth" for these tests would be defined by engineering specifications and regulatory standards (e.g., IEC standards).
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not Applicable. No human adjudication method is described as the data pertains to non-clinical tests.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- No such study was done or reported. The device is an intracranial pressure monitoring device, and the submission is for a new sensor model. It is not an AI-assisted diagnostic tool that would typically involve a multi-reader multi-case study to assess human reader improvement.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- The information provided primarily focuses on the technical validation of the hardware (sensor) and its integration with the existing B4C System software and receiver. Specifically, it mentions "Software Verification and Validation" demonstrating that "all software requirements were appropriately implemented."
- While the device outputs parameters for "interpretation," the assessment here is on the technical functionality and equivalence of the new sensor's output, not a standalone diagnostic algorithm's performance. The device is explicitly stated as not a standalone diagnostic tool, but provides information for clinician interpretation.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- Not Applicable in the traditional clinical sense. For the non-clinical bench testing and verification/validation, the "ground truth" refers to established engineering specifications, regulatory standards (e.g., IEC 60601-1), or the known performance of the predicate device against which the new sensor's outputs ("stability, repeatability, and reproducibility of ICP waveform outputs") are compared.
8. The sample size for the training set:
- Not Applicable. The document describes a 510(k) submission for a new sensor model and its non-clinical performance and equivalence to a predicate. It does not refer to an AI/ML algorithm that would require a "training set" in the common sense of machine learning. The B4C System contains "analytical and processing software," but the submission does not detail its development or "training" data.
9. How the ground truth for the training set was established:
- Not Applicable. See point 8.
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(139 days)
Name: CereLink ICP Monitor (826820), CereLink ICP Extension Cable (826845) Regulation Number: 21 CFR 882.1620
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| Classification Name | Device, Monitoring, Intracranial Pressure (21 CFR 882.1620
The ICP Monitor is intended for use as an interface between compatible strain gauge type pressure transducers and standard physiological pressure monitoring systems. The ICP Monitor is also intended for use as an independent pressure monitor for displaying the mean, systolic and diastolic values of a physiologic pressure waveform in the absence of an external patient monitor. The CereLink ICP Extension cable is intended for use as a connecting cable between the ICP input channel of the CereLink ICP Monitor and a CereLink ICP Sensor.
The CereLink ICP Monitor is indicated for use in the ICU or Operating Room (OR) environment for monitoring intracranial pressure (ICP) via a solid-state sensor placed directly in parenchymal tissue or integrated into an external ventricular drainage catheter placed in the ventricle. In addition to monitoring ICP and activating alarms when the intracranial pressure is outside user-set limits, the device performs these functions:
- Displays ICP Waveform
- Displays Mean ICP numeric
- Displays the historic mean pressure as a trend
- Displays trend statistics (Pressure Time Dosage (PTD), time above threshold, boxplot, histogram)
- Stores 14-days' worth of mean ICP values
- Stores 24 hours of pressure waveform
- Can capture and store screen-shots
- Can download various data to a USB device for printing or analysis
- Real-time data streaming of mean ICP and waveform via USB connection
- Connect to external patient monitor
The CereLink ICP Monitor can be transported with the hospital to continuously record data. The monitor includes a 7" color touch screen that is compatible with the use of gloves. The monitor is provided to the user with a CereLink ICP Extension Cable, external power supply, and comes equipped with an internal rechargeable battery. The monitor has one output channel to transfer physiological data to a compatible Patient Monitor, as well as one input channel to receive ICP readings from the implanted CereLink ICP sensor. The implanted sensor is connected to the CereLink ICP Monitor by way of the CereLink ICP Extension Cable; the CereLink ICP Monitor connects to compatible patient monitors through the patient monitor interface cables.
The provided text describes a 510(k) premarket notification for a medical device, the CereLink ICP Monitor and CereLink ICP Extension Cable, which are intended for intracranial pressure monitoring. The document outlines acceptance criteria and performance testing for these devices, particularly focusing on modifications made to the extension cable.
1. Table of Acceptance Criteria and Reported Device Performance:
Test | Acceptance Criteria | Reported Device Performance/Conclusion |
---|---|---|
Mechanical Tests | Not explicitly stated | Pass |
Electrical Testing (Impedance Measurement) | Not explicitly stated | Pass |
Out of Range Failure Test (using electrical stress setup) | Recovery within specified time after correct connection of patient lead | All CereLink Systems recovered from failure within specified amount of time. Pass |
30 Day ICP Drift Test (using electrical stress setup) | Meet specification | ICP drift met the specification. Pass |
Mean Time Between Failure Calculation Test | Not explicitly stated | Pass |
Simulated Environment Validation Test (13 days) | Not explicitly stated | Pass |
Label Verification Test | Not explicitly stated | Pass |
Drawing Verification Test | Not explicitly stated | Pass |
Summative Usability Report | Not explicitly stated | Pass |
Biocompatibility: ISO 10993-5:2009 | Not explicitly stated | Pass |
Biocompatibility: ISO 10993-10:2021 | Not explicitly stated | Pass |
Biocompatibility: ISO 10993-23:2021 | Not explicitly stated | Pass |
Electrical Safety: IEC 60601-1: 2005+AMD1:2012+AMD2:2020 | Not explicitly stated | Pass |
Electrical Safety: IEC 60601-1-6: 2010+AMD1:2013+AMD2:2020 | Not explicitly stated | Pass |
Electrical Safety: IEC 60601-1-8:2006+AMD1:2012+AMD2:2020 | Not explicitly stated | Pass |
Electrical Safety: IEC 60601-1-2:2014+AMD1:2020 | Not explicitly stated | Pass |
Electrical Safety: IEC 62366-1:2015+AMD1:2020 | Not explicitly stated | Pass |
2. Sample Size Used for the Test Set and Data Provenance:
The document refers to "the CereLink Systems" being exposed to the electrical stress setup. It does not provide a specific number for the sample size (e.g., number of devices or test units) used in these tests.
The data provenance is from bench testing as explicitly stated ("Performance Bench Test Results"). This indicates controlled laboratory conditions. There is no mention of country of origin for the data, and the nature of the tests (bench) makes the retrospective/prospective distinction less relevant in the typical clinical study sense. However, the tests are for design verification and validation, implying they were conducted prospectively to assess the new design.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications:
Not applicable. This submission pertains to a hardware device (ICP monitor and cable) and its electrical and mechanical performance, not an AI/software device that requires human expert review to establish ground truth for image or diagnostic interpretation. The testing relies on established engineering and medical device standards.
4. Adjudication Method for the Test Set:
Not applicable. As noted above, this is not an AI/software device requiring subjective interpretation or adjudication by experts. The tests are objective performance evaluations against specifications.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done:
No, an MRMC comparative effectiveness study was not done. The device is a hardware ICP monitor and cable, not an AI-assisted diagnostic tool for human readers.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done:
Not applicable. This is not an algorithm-based device. The "performance" refers to the physical and electrical characteristics of the monitor and cable. The tests described (ICP Drift, Out-of-Range Failure, Electrical Safety, etc.) are essentially "standalone" performance evaluations of the device itself.
7. The Type of Ground Truth Used:
The ground truth for the device's performance is based on engineering specifications and internationally recognized standards (e.g., ISO, IEC). For the specific "Out-of-Range Failure Test," the ground truth for "failure" is when the device enters the out-of-range state, and the "recovery" is when it exits that state within a specified time, which are objective, measurable outcomes in a controlled "electrical stress setup" designed to reproduce these failures.
8. The Sample Size for the Training Set:
Not applicable. This is not a machine learning or AI device that requires a training set.
9. How the Ground Truth for the Training Set was Established:
Not applicable, as there is no training set for this hardware device.
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(134 days)
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| Secondary
Product Code: | GWM (21 CFR 882.1620
The use of IRRAflow Active Fluid Exchange System is intracranial pressure monitoring is required, and for externally draining intracranial fluid, as a means of reducing intracranial pressure in patients where an external drainage and monitoring system is needed.
The IRRAflow® Active Fluid Exchange System (AFES) is an intracranial pressure (ICP) monitoring and drainage system intended for use by professional medical hospital personnel, trained and experienced in neurosurgical medical care. The drainage flow of cerebrospinal fluid (CSF) into the IRRAflow Catheter is uni-directional and gravity-driven; there is no recirculation of the CSF. A parallel line from the saline infusion bag is used in case clearance at the tip of the catheter is required. The IRRAflow Tube Set has a cassette that clicks on to the IRRAflow Control Unit and aligns the tubing against a peristaltic pump and pinch valve. The IRRAflow Drainage Collection System is attached to the Control Unit, using the Laser Leveler for defining the height of the Drainage Collection System relative to the catheter's tip position in the patient's head. This positioning is used for controlling the speed of drainage. The tubing and catheter can be disconnected and connected by standard Luer-Lock connectors. Settings can be changed via the user interface on the Control Unit. The default mode provides drainage and measuring ICP, allowing bolus injections when indicated. The bolus injections allow the catheter to be flushed when it becomes clogged. CSF or intracranial fluid samples can be taken from the Drainage Collection System.
The provided text is a 510(k) premarket notification decision letter from the FDA regarding the IRRAflow Active Fluid Exchange System (AFES). The purpose of this submission is to demonstrate substantial equivalence to a previously cleared predicate device, specifically regarding changes to the Tube Set and Drainage Collection System. Therefore, the "acceptance criteria" and "study that proves the device meets the acceptance criteria" are focused on demonstrating that the modified device's performance is equivalent to, or better than, the predicate device.
Here's an analysis based on the provided document:
1. A table of acceptance criteria and the reported device performance
The document does not explicitly present a table of quantitative acceptance criteria alongside numerical performance results for the device. Instead, it relies on a "PASS" or "FAIL" outcome for various verification and validation tests. The acceptance criteria for these tests are implied to be established by the test protocols and industry standards (e.g., "Pressure accuracy per protocol," "Durability, flow and freedom from leakage per protocol").
Here's a table summarizing the tests performed and their reported outcomes:
Test Category | Test Performed | Reported Device Performance (Result) |
---|---|---|
Biocompatibility Testing | Cytotoxicity (MEM Elution) | PASS |
Sensitization Test | PASS | |
Irritation/Intracutaneous Reactivity Test | PASS | |
Acute Systemic Toxicity, Injection Test | PASS | |
Systemic Toxicity, Mediated Pyrogen | PASS | |
Genotoxicity (on various strains of bacteria) | PASS | |
Genotoxicity (on mouse lymphoma cells) | PASS | |
Bench and Electrical Testing | Electrical Requirements Verification (Pressure accuracy) | PASS |
Mechanical Performance Verification (Durability, flow, freedom from leakage) | PASS | |
Life Cycle Verification Test (Simulated use for reliability) | PASS | |
Shelf Life / Package Integrity Testing | Simulated Distribution Test (ASTM D4332-14, ASTM D4169-22 Cycle 13) | PASS |
Package Integrity Test (ASTM F1886-16, ASTM F2096-11) | PASS | |
Package Seal Strength Test (EN 868-5:2009) | PASS | |
Aging Test (Accelerated and real-time aging) | PASS | |
Sterilization Testing | Sterilization Process Validation (Ethylene Oxide for Cassette and Drainage System) | PASS |
2. Sample size used for the test set and the data provenance
The document does not specify the sample sizes used for any of the tests listed in Table 3.
The data provenance is not explicitly stated beyond general descriptions of the tests (e.g., "The Minimal Essential Media (MEM) Elution test," "This test was designed to evaluate the allergenic potential"). There is no mention of country of origin or whether the tests were retrospective or prospective. Given the nature of these tests (bench, electrical, biocompatibility, sterilization validation), they are typically conducted as prospective laboratory studies rather than clinical studies using patient data.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
This information is not provided in the document. The tests performed are primarily engineering and laboratory-based, often following standardized protocols. Therefore, the concept of "ground truth" established by clinical experts (like radiologists for imaging devices) would not directly apply to these types of performance tests. The "ground truth" here is implied by adherence to established test methods and acceptable performance limits defined by those methods.
4. Adjudication method for the test set
This information is not provided and is generally not applicable to the types of performance tests described (biocompatibility, electrical, mechanical, shelf life, sterilization). Adjudication methods like 2+1 or 3+1 are typically used in clinical studies where multiple human readers interpret data (e.g., medical images) and a consensus is needed to establish a definitive ground truth.
5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
There is no indication that a multi-reader multi-case (MRMC) comparative effectiveness study was done. The device is a physical system for fluid exchange and pressure monitoring, not an AI-powered diagnostic tool for image interpretation or similar tasks that would typically involve human readers and AI assistance.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
This question is not applicable as the IRRAflow AFES is a medical device for intracranial pressure monitoring and fluid drainage, not an algorithm or AI system. Its performance is evaluated through engineering and biological safety tests.
7. The type of ground truth used
For the performance tests described (biocompatibility, electrical, mechanical, shelf life, sterilization), the "ground truth" is based on:
- Established Test Standards and Protocols: Such as ASTM D4332-14, ASTM D4169-22 Cycle 13, ASTM F1886-16, ASTM F2096-11, EN 868-5:2009.
- Defined Acceptance Criteria: These criteria are inherent to the test methods and are designed to ensure safety and effectiveness (e.g., pressure accuracy per protocol, freedom from leakage per protocol).
- Laboratory Measurements and Observations: The results are direct measurements or observations within controlled laboratory environments.
It's not "expert consensus," "pathology," or "outcomes data" in the clinical sense, but rather adherence to predefined engineering and biological safety specifications.
8. The sample size for the training set
This question is not applicable because the IRRAflow AFES is a hardware medical device with specific Tube Set and Drainage Collection System modifications, not a machine learning or AI model that requires a "training set."
9. How the ground truth for the training set was established
This question is not applicable as there is no training set for this device.
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(114 days)
| 21 CFR 882.1620
| 21 CFR 882.1620
| 21 CFR 882.1620
The use of the IRRAflow Active Fluid Exchange System is indicated when intracranial pressure monitoring is required and for externally draining intracranial fluid as a means of reducing intracranial pressure in patients where an external drainage and monitoring system is needed.
The IRRAflow® Active Fluid Exchange System (formerly branded as the CNS System) is an intracranial pressure (ICP) monitoring and drainage system, substantially equivalent to the predicate 510(k) K200807. Changes described herein were evaluated using design controls. The drainage flow of cerebrospinal fluid (CSF) into the IRRAflow Catheter is uni-directional and gravity-driven; there is no recirculation of the CSF. A parallel line from the saline infusion bag is used in case clearance at the tip of the catheter is required. The IRRAflow Tube Set has a cassette that clicks on to the IRRAflow Control Unit and aligns the tubing against a peristaltic pump and pinch valve. A drainage bag is attached to the Control Unit, using the Laser Leveler for defining the height of the bag relative to the catheter's tip position in the patient's head. This positioning is used for controlling the speed of drainage. The tubing and catheter can be disconnected and connected by standard Luer-Lock connectors. Settings can be changed via the user interface on the Control Unit. The default mode provides drainage and measuring ICP, allowing bolus injections when indicated. The bolus injections allow the catheter to be flushed when it becomes clogged. CSF or intracranial fluid samples can be taken from the aspiration port.
The provided text is a 510(k) summary for the IRRAflow® Active Fluid Exchange System (AFES). It details the device's technical specifications and compares it to predicate devices to demonstrate substantial equivalence. However, it does not contain the information requested regarding acceptance criteria and performance data for an AI/ML powered device.
The document explicitly states that the device is an "intracranial pressure (ICP) monitoring and drainage system" and that "Changes made only to the Control Unit software required additional testing, including verification and validation of new and enhanced functionality." It refers to "Control Unit 4.0," which includes software enhancements.
Despite mentioning "User software enhancements" and "pressure accuracy improvement," the document focuses on engineering verification and validation tests for a hardware/software medical device, not an AI/ML algorithm. The tests listed in "Table 4" (Verification by Inspection, BSM Requirements Verification, Electrical Requirements Verification, Mechanical Performance Verification, Life Cycle Verification Test, Packaging Verification) are standard for medical device hardware and software, but do not align with the typical criteria and studies for proving the performance of an AI/ML-powered algorithm, especially none that would require ground truth from experts, multi-reader studies, or specific AI acceptance metrics like sensitivity/specificity or AUC.
Therefore, I cannot fulfill the request for a table of AI acceptance criteria and performance, sample sizes for test/training sets, expert qualifications, adjudication methods, MRMC studies, or standalone algorithm performance, as these details are not present in the provided document. The document describes a conventional medical device clearance, not an AI/ML clearance.
Without further information that explicitly details a clinical study demonstrating the performance of an AI/ML component with human-in-the-loop or standalone, I cannot generate the requested output.
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(448 days)
Floor New York, New York 10001
Re: K201989
Trade/Device Name: B4C System Regulation Number: 21 CFR 882.1620
|
| Regulation: | 21 CFR 882.1620
The B4C System is intended for the monitoring of variation in intracranial pressure in patients with suspected alteration of intracranial pressure (ICP) or change in intracranial compliance, by providing surrogate ICP waveforms and associated parameters (estimated P2/P1 ratio, normalized Time-to-Peak, derived useful ICP pulses and cardiac pulses) for interpretation.
The B4C System is a non-invasive device intended for the monitoring of variation in intracranial pressure, including patients with suspected alteration of intracranial pressure (ICP) or change in intracranial compliance. It consists of a sensor with Bluetooth wireless module, headband, mobile device software application, receiver, external battery pack and charger, as well as processing and analytical software. The sensor contains four strain gauges situated on a metal bar that detects variations in skull deformation through tension and compression of the metal bar in response to changes in intracranial pressure. These resistance measures are converted to a digital signal using a high-resolution ADC (Analog to Digital Converter) in the sensor that is transmitted to software components for viewing, processing and analysis. The proposed device does not measure absolute intracranial pressure values, but produces surrogate waveform morphology, its trend, and associated parameters reflecting changes in ICP. The B4C System and surrogate waveform and associated outputs do not substitute ICP monitoring methods when measurement of the absolute value of ICP is required to make a clinical decision.
Here's a breakdown of the acceptance criteria and the study that proves the B4C System meets them, based on the provided FDA 510(k) summary:
Acceptance Criteria and Reported Device Performance
The acceptance criteria for the B4C System's clinical performance are implicitly derived from the study objectives and the statistical analyses performed. The primary objective was to demonstrate a "consistent correlation" and "reliability and accuracy of the correlation" between the B4C System's surrogate ICP waveform and parameters and those from invasive ICP monitoring.
Acceptance Criteria (Implicit) | Reported Device Performance |
---|---|
P2/P1 Ratio Correlation: Statistically significant correlation with invasive ICP monitoring. | Spearman correlation: 0.495 [0.471, 0.517], p0.7. |
Normalized Time-to-Peak (TTP) Correlation: Statistically significant correlation with invasive ICP monitoring. | Spearman correlation: 0.318 [0.291, 0.345], p0.2. |
Safety: No serious adverse events related to the device. | No adverse events were reported. |
Substantial Equivalence: Demonstrate comparable performance to predicate device with respect to ICP waveform morphology monitoring. | The study concluded that results demonstrated a statistically significant correlation in the ICP signal and waveform parameters between the B4C System and the gold standard invasive ICP monitoring device. The outcomes demonstrate comparable effectiveness between the Braincare device and commonly used invasive ICP devices for monitoring and assessing variations in ICP waveform associated parameters over time. Based on performance testing and comparison, it was deemed substantially equivalent to the predicate device. |
Detailed Study Information:
-
Sample sizes used for the test set and data provenance:
- Total enrolled subjects: 123
- Subjects after device label check: 107
- Subjects after data quality check: 85 (78 adults, 7 pediatric)
- Analyzed participants (test set): 78 adults (due to reduced quantity of pediatric subjects, enabling statistically relevant performance only for adults).
- Total acquisition time analyzed: 4695 minutes (98% adult, 2% pediatric across the broader dataset).
- Data Provenance: Not explicitly stated, but the mention of "4 centers" suggests a multi-center study. The sponsor is Braincare Desenvolvimento e Inovacao Tecnologica S.A. based in Brazil, suggesting the origin of the data is likely within Brazil or other international sites. The study was described as "combined prospective, multi-center, observational study."
-
Number of experts used to establish the ground truth for the test set and qualifications of those experts:
- The document implies that the ground truth was established using "gold standard invasive ICP monitoring methods such as the external ventricular drain or intraparenchymal micro transducers."
- It does not explicitly state the number of experts or their qualifications for establishing the ground truth from these invasive methods. It relies on the inherent validity of the invasive measurements as the "gold standard."
-
Adjudication method for the test set:
- No adjudication method (e.g., 2+1, 3+1) is mentioned for the test set ground truth. The ground truth was established directly from invasive ICP devices. This type of data does not typically involve multiple human readers or adjudication in the same way as, for example, image interpretation.
-
If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- No, a multi-reader multi-case (MRMC) comparative effectiveness study was not explicitly performed or described. This study focused on the technical correlation and agreement between the device's output and invasive ICP measurements. It did not directly assess the impact of the B4C System on human reader performance or diagnostic accuracy.
-
If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- The study primarily focused on the standalone performance of the B4C System's ability to produce surrogate ICP waveforms and associated parameters that correlate with invasive ICP measurements. The analysis (Spearman correlation, normalized mutual information, Bland-Altman, Deming regression) evaluates this algorithm-only performance.
- The device is intended to provide "surrogate ICP waveforms and associated parameters... for interpretation," implying a human-in-the-loop for interpretation, but the study itself is about the accuracy of the device's output compared to ground truth.
-
The type of ground truth used:
- Objective/Physiological Data: The ground truth was established using "gold standard invasive ICP monitoring methods such as the external ventricular drain or intraparenchymal micro transducers." This represents direct physiological measurement rather than expert consensus on subjective interpretation.
-
The sample size for the training set:
- The document does not specify a separate training set size. The clinical study described appears to be a validation study (test set) for the pre-existing B4C System, which includes processing and analytical software. Given the description, the models and algorithms within the B4C System would have been developed and trained using other data, but that training data and its size are not disclosed in this 510(k) summary.
-
How the ground truth for the training set was established:
- As the training set details are not provided, the method for establishing its ground truth is also not described in this document.
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(28 days)
Massachusetts 02048
Re: K210993
Trade/Device Name: CereLink ICP Monitor Regulation Number: 21 CFR 882.1620
System |
| Classification Name | Intracranial Pressure Monitoring Device (21 CFR 882.1620
The ICP Monitor is intended for use as an interface between compatible strain-gauge type pressure transducers and standard physiological pressure monitoring systems. The ICP Monitor is also intended for use as an independent pressure monitor for displaying the mean, systolic and diastolic values of a physiologic pressure waveform in the absence of an external patient monitor.
The CereLink ICP Monitor is indicated for use in the ICU or OR environment for monitoring intracranial pressure (ICP) via a solid-state sensor placed directly in parenchymal tissue or integrated into an external ventricular drainage catheter placed in the ventricle. In addition to monitoring ICP and activating alarms when the intracranial pressure is outside user-set limits, the device performs these functions:
- Displays ICP Waveform .
- Displays Mean ICP numeric .
- Displays the historic mean pressure as a trend .
- Displays trend statistics (Pressure Time Dosage (PTD) , time above threshold, boxplot, . histogram)
- Stores 14-days' worth of mean ICP values .
- . Stores 24 hours of pressure waveform
- Can capture and store screen-shots 9
- . Can download various data to a USB device for printing or analysis
- Real-time data streaming of mean ICP and waveform via USB connection .
- Connect to external patient monitor .
The CereLink ICP Monitor can be transported with the patient within the hospital to continuously record data. The monitor includes a 7" color touch screen that is compatible with the use of gloves. The monitor is provided to the user with an CereLink ICP extension cable, external power supply, and comes equipped with an internal rechargeable battery. The monitor has one output channel to transfer physiological data to a compatible Patient Monitor, as well as one input channel to receive ICP readings from the implanted CereLink ICP sensor (cleared via K173192). The implanted sensor is connected to the CereLink ICP Monitor by way of the CereLink ICP Extension Cable (cleared via K183406); the CereLink ICP Monitor connects to compatible patient monitors through the patient monitor interface cables (cleared via K152670).
Let's break down the information provided to answer your request.
Based on the provided document, the CereLink ICP Monitor is a device that interfaces with pressure transducers and monitors intracranial pressure. The submission to the FDA (K210993) is for modifications to an existing CereLink ICP Monitor (predicate K183406), not for a brand new device. Therefore, the "study" described is primarily focused on demonstrating that the modifications do not negatively impact the device's safety and effectiveness compared to the original, already cleared device.
Here's the breakdown of acceptance criteria and the study that proves the device meets them:
1. A table of acceptance criteria and the reported device performance
Since this is a submission for modifications to an already cleared device, the "acceptance criteria" are implied to be the successful demonstration that the modifications do not introduce new safety or effectiveness concerns and that the device continues to perform as intended and substantially equivalent to its predicate. The document doesn't list specific quantitative acceptance criteria for clinical performance in the way one might expect for a novel diagnostic algorithm. Instead, it focuses on various engineering and design-related tests to confirm the changes are benign or improvements.
Acceptance Criteria Category (Implied) | Reported Device Performance (Conclusion) |
---|---|
Performance Testing (e.g., ICP accuracy) | Pass |
Software Integrity and Functionality | Pass |
Electrical Safety | Pass |
Electromagnetic Compatibility | Pass |
Sterilization/Cleaning Requirements | Non-sterile, no change to parameters |
Shelf-Life | Not applicable (reusable, no expiry) |
Biocompatibility | Not applicable (non-patient contacting) |
No new questions of safety and effectiveness | Concluded as substantially equivalent |
2. Sample size used for the test set and the data provenance
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
4. Adjudication method for the test set
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
For a device like the CereLink ICP Monitor, which is a physiological measurement and monitoring device, the "test set" and "ground truth" are interpreted differently than for, say, an AI-powered diagnostic imaging tool.
- Test Set/Sample Size: The document refers to various bench tests including "ICP Drift Test," "Common Mode Noise and Leakage Current Power Supply Test," "13 Day Simulated Environment Validation Test," etc. These are engineering validation tests, not clinical studies with patient data in the traditional sense of a "test set." The sample sizes would refer to the number of devices or components tested, but this specific detail is not provided in a summarized form.
- Data Provenance: Not applicable in the context of clinical data for performance validation. The testing seems to be internal engineering verification and validation.
- Experts/Ground Truth/Adjudication Method/MRMC/Standalone Performance: These concepts are largely not applicable here. The CereLink ICP Monitor is not an AI-driven diagnostic device that relies on expert interpretation or establishing a ground truth for diagnostic accuracy (like identifying a lesion on an image). It's a device that measures and displays physiological parameters. The "ground truth" in this context would be the actual physical/electrical properties that the device is designed to measure and the expected behavior under various conditions (e.g., drift, noise, safety limits). The study's focus is on validating the device's performance against these engineering and safety standards, not on its diagnostic accuracy based on expert consensus.
The document explicitly states:
- "No clinical studies were required."
- "Appropriate verification of the subject device was achieved based on the comparison to the predicate device and from the results of the bench, software, electrical safety, and electromagnetic compatibility testing."
- "The CereLink ICP Monitor is a reusable, non-sterile device. There is no expiry date and shelf-life is not applicable for this device."
- "The CereLink ICP Monitor is non-patient contacting. Therefore, biocompatibility is not applicable for this device."
- "No animal studies were required."
This indicates that the "study" primarily consisted of bench testing and engineering verification and validation to confirm that the technical modifications (power supply, internal components, software updates, etc.) did not compromise the device's ability to accurately measure ICP, maintain electrical safety, and function reliably.
8. The sample size for the training set
9. How the ground truth for the training set was established
These questions are not applicable as the CereLink ICP Monitor is not described as an AI/machine learning device that requires a training set. The modifications described are hardware and software updates to an existing physiological monitoring device, not the development of a predictive algorithm using a "training set."
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(29 days)
Device Name: Exacta External Drainage and Monitoring System (EDMS) Regulation Number: 21 CFR 882.1620
Classification
Name: Intracranial pressure monitoring device Product code: GWM Regulation: 21 CFR 882.1620
Draining and monitoring of CSF flow from the lateral ventricles or lumbar subarachnoid space is indicated in selected patients to:
- Reduce ICP, e.g., pre-, intra- or postoperative.
- Monitor CSF chemistry, cytology, and physiology.
- Provide temporary CSF drainage in patients with infected cerebrospinal fluid shunts.
Monitoring of ICP is indicated in selected patients with: - Severe head injury.
- Subarachnoid hemorrhage graded III, IV or V preoperatively.
- Reyes syndrome or similar encephalopathies.
- Hydrocephalus.
- Intracranial hemorrhage.
- Miscellaneous problems when drainage is to be used as a therapeutic maneuver.
Monitoring can also be used to evaluate the status pre- and postoperatively for space-occupying lesions.
The Exacta External Drainage and Monitoring System (EDMS) is provided as a complete closed system for the drainage and monitoring of cerebrospinal fluid (CSF) flow from the lateral ventricles or the lumbar subarachnoid space. The system is offered in various kit configurations for various clinical applications.
The Exacta EDMS product family is comprised of a single use drainage system, a reusable blue pole clamp and a laser level accessory. The single use drainage assembly is comprised of a patient line, main system stopcock, graduated cylinder and drainage bag. The single use drainage assembly is mounted on the reusable blue pole clamp. The reusable blue pole clamp secures the system to an I.V. pole and includes the system pressure scale and holds an optional laser level accessory. The optional laser level accessory assists the user in leveling the single use drainage system to the patient's Foramen of Monro or lumbar catheter exit site.
This document is a 510(k) summary for the Medtronic Exacta External Drainage and Monitoring System (EDMS). The submission focuses on changes to a laser level accessory and does not involve AI. Therefore, several requested sections, especially those related to AI model evaluation, are not applicable.
Here's a breakdown of the available information:
1. Table of Acceptance Criteria and Reported Device Performance
The acceptance criteria provided are qualitative (e.g., "met the acceptance criteria") rather than quantitative thresholds.
Test | Acceptance Criteria (Implied) | Reported Device Performance |
---|---|---|
Mechanical Strength | Laser does not present a safety hazard after push test, impact test, and dropping. | The laser level device met the acceptance criteria for mechanical strength. |
Beam Uniformity | Beam uniformity meets specified requirements. | The laser level device met the acceptance criteria for beam uniformity. |
Laser Accuracy | Laser accuracy meets specified requirements at a set distance. | The laser level device met the acceptance criteria for laser accuracy. |
Laser Safety | Laser power output complies with exposure limits for Class 3R Laser (IEC/EN 60825-1:2014 compliant). | The laser level device met the acceptance criteria for laser safety. |
Auto Shut Off | Time laser is "on" after activation meets specified requirements. | The laser level device met the acceptance criteria for auto shut off. |
Electrical Safety | Compliance with IEC 60601-1:2005 + AMD1:2012. | (Results not explicitly detailed, but implied by overall conclusion of safety and effectiveness) |
Electromagnetic Compatibility (EMC) | Compliance with IEC 60601-1-2:2014 / EN 60601-1-2:2015. | (Results not explicitly detailed, but implied by overall conclusion of safety and effectiveness) |
2. Sample Size Used for the Test Set and Data Provenance
The document does not specify the sample size for the test set used in the bench testing. It only states that the testing was performed, but not how many units were tested.
- Data Provenance: The tests were "design verification bench testing," implying they were conducted in a lab setting by the manufacturer, Medtronic, Inc., located in Irvine, California, USA. The data is retrospective in the sense that it was collected as part of the device development and submission process.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
Not applicable. The testing described is bench testing of physical device characteristics (mechanical, laser performance, electrical safety) against established engineering and safety standards, not against clinical ground truth requiring expert consensus.
4. Adjudication Method for the Test Set
Not applicable. This was bench testing against engineering specifications, not a clinical study requiring expert adjudication of results.
5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This submission is for an External Drainage and Monitoring System and its laser level accessory. It is a physical medical device, not an AI-powered diagnostic or assistive tool for human readers.
6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This device is not an algorithm.
7. The Type of Ground Truth Used
The "ground truth" for the bench testing was defined by engineering specifications and international standards for mechanical strength, beam uniformity, laser accuracy, laser safety (IEC/EN 60825-1:2014), electrical safety (IEC 60601-1:2005 + AMD1:2012), and EMC (IEC 60601-1-2:2014 / EN 60601-1-2:2015).
8. The Sample Size for the Training Set
Not applicable. This device does not use a training set as it is not an AI/machine learning product.
9. How the Ground Truth for the Training Set was Established
Not applicable.
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(33 days)
| GWM |
| Regulation: | 21 CFR 882.1620
|
| Secondary Regulation
Number: | 21 CFR 882.1620
| 21 CFR 882.1620
The use of IRRAflow® CNS System is indicated when intracranial pressure monitoring is required and for externally draining intracranial fluid as a means of reducing intracranial pressure in patients where an external drainage and monitoring system is needed.
The IRRAflow CNS System is an intracranial pressure (ICP) monitoring and drainage system. It consists of an IRRAflow Control Unit and two sterile disposable parts, the IRRAflow Tube Set and the IRRAflow Catheter. The drainage flow of cerebrospinal fluid (CSF) into the IRRAflow Catheter is uni-directional and gravity-driven. A parallel line from the saline infusion bag is used for clearance at the tip of the catheter. The IRRAflow Tube Set has a cassette that clicks on to the IRRAflow Control Unit and aligns the tubing against a peristaltic pump and pinch valve. An aspiration bag is attached to the Control Unit tape measure, defining the height of the bag relative to the catheter's tip position in the patient's head and thus controlling the speed of drainage. The tubing and catheter can be disconnected and connected by standard Luer-Lock connectors. Settings can be changed via the user interface on the Control Unit. The default mode provides drainage and measuring ICP, allowing single bolus injections when indicated. CSF or intracranial fluid samples can be taken from the aspiration port. The submission also includes the IRRAflow® Laser Leveler, a reusable accessory to be utilized in conjunction with the IRRAflow® CNS system to assist in setting the height of the control unit by generating a laser mark.
This document describes the design verification and validation for an accessory, the IRRAflow® Laser Leveler, to an existing medical device, the IRRAflow® CNS System. The main device (IRRAflow® CNS System) itself has not undergone any changes, and therefore no new performance data was required for it. The focus of this submission is on the laser leveler accessory.
Here's the breakdown of the requested information based on the provided text:
1. A table of acceptance criteria and the reported device performance
Test | Acceptance Criteria (Implied by "Pass" result) | Reported Device Performance |
---|---|---|
Dimensional | Units meet dimensional specifications. | Pass |
Visual (laser) | Units have legible labeling and are free of damage and/or foreign particulate. | Pass |
Visual (Packaging) | Packaging is free of damage and labels are legible. | Pass |
Functional Testing | Button press operates correctly, vertical position test passes, laser spot alignment is correct, auto shutoff test passes, trunnion articulation is functional. | Pass |
IEC 60825-1 (Laser safety) | Wavelength and conformance to IEC 60825-1 standard are met. | Pass |
IEC 60529 (IP22) (Fluid ingress) | Conformance to the IP2X requirements of IEC 60529 Edition 2.2 is met. | Pass |
ASTM D4332-14 - Package environmental conditioning | Withstand conditioning at Extreme Cold (-30°C), Tropical (+40°C, 90% RH), and Desert (+60°C, 15% RH) for 24 hours. | Pass |
ASTM D4169-16, Distribution cycle 13 | Withstand specified air (intercity) and motor freight (local) transportation for single packages up to 150 lb. (61.8 kg). | Pass |
Schedule A Initial manual handling - ASTM D5276-98 Box | Withstand six impacts (Top, two adjacent bottom edges, two diagonally opposite bottom corners, bottom) at drop heights dependent on weight per procedure. | Pass |
Schedule C Vehicle stacking - ASTM D642-15 | Package systems withstand compression per the computed load value in section 11.4. | Pass |
Schedule F Loose load vibration - ASTM D999-08 | Withstand 60 minutes of repetitive shock test (rotary motion) with dwell time distributed as specified (50% bottom, 50% side and end orientations). | Pass |
Schedule I Low Pressure Test - ASTM D6653-13 | Withstand low pressure equivalent to 14,000 feet (446 torr) for 60 minutes, with specified ramp rates. | Pass |
Schedule E Vehicle Vibration – ASTM D4729-17 Truck and Air | Withstand Truck Spectrum (Low, Medium, High) and Air Spectrum vibrations at specified frequency ranges and overall intensities for durations outlined per standard. | Pass |
Schedule J Concentrated Impact - ASTM D6344-04 | Withstand concentrated impact (cylindrical mass at 32 inches drop height, 5.4 J) to all 6 faces of the box (or all wrapped faces excluding base for plastic wrapped loads), unless shipper meets specific Mullen Burst/ECT strength. | Pass |
Schedule A Final Manual handling – ASTM D5276-99 Box | Withstand six impacts (vertical edge, two adjacent side faces, one top corner, one adjacent top edge, bottom – with the last impact at twice the specified height) at drop heights dependent on weight per procedure. | Pass |
ASTM F19880-16 Accelerated Aging Testing | Withstand accelerated aging equivalent to 6 months of real-time aging, simulated over 10 days at +65°C (uncontrolled RH), based on a Q10 value of 2 and a real-time room temperature of +23°C. | Pass |
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
- Sample Size: The document does not specify the exact sample size for each test. It generally refers to "units" or "packages" being tested. For certain tests like "Schedule A Initial manual handling - ASTM D5276-98 Box", it mentions "Six (6)" impacts, which implies a sample size of at least one unit per test setup.
- Data Provenance:
- Development and testing for the laser leveler was performed at a contract manufacturer, Meraqi Medical, Inc. (Freemont, CA).
- Laser testing was performed at a sub-contractor, Intertek (Menlo Park, CA).
- This indicates the data originates from the USA.
- The studies mentioned are verification and validation tests performed during the design and manufacturing process of the laser leveler. These are typically prospective tests aimed at confirming product specifications and safety.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
- This information is not applicable to this submission. The laser leveler is a physical accessory designed to assist with a spatial alignment task. The tests performed are engineering-focused (dimensional, functional, safety, environmental, packaging), not clinical performance evaluations requiring expert assessment for "ground truth". The "ground truth" for these tests is defined by established engineering and safety standards.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
- This information is not applicable. As these are engineering verification and validation tests against established standards and specifications, there is no need for a human adjudication method in the context described (like consensus in image interpretation). The results are objective measurements (e.g., passing a specific temperature range, meeting a safety standard).
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
- This information is not applicable. The device (IRRAflow® CNS System with Laser Leveler) is not an AI-powered diagnostic imaging system or an AI-assisted interpretation tool. It's a medical device system for intracranial pressure monitoring and fluid drainage, with an accessory to aid in physical alignment. Therefore, an MRMC study is not relevant.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- This information is not applicable. The IRRAflow® CNS System and its laser leveler accessory are physical medical devices, not an algorithm. The laser leveler functions as a tool that assists a human operator in a physical setup task; it is not a standalone algorithm performing automated analysis.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
- The ground truth for the verification and validation tests listed is based on established engineering standards, safety requirements, and design specifications. For example, for IEC 60825-1, the ground truth is "conformance to the IEC 60825-1 standard for laser safety". For dimensional tests, it's the design specification for the dimensions of the unit. For packaging tests, it's the ability to withstand specific environmental and physical stressors as defined by ASTM standards.
8. The sample size for the training set
- This information is not applicable as the IRRAflow® Laser Leveler is not an AI system that requires a training set. It is a physical device that underwent engineering verification and validation.
9. How the ground truth for the training set was established
- This information is not applicable for the same reason as described in point 8.
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(30 days)
Trade/Device Name: Medtronic External Drainage and Monitoring System (EDMS) Regulation Number: 21 CFR 882.1620
Classification
Name: Intracranial pressure monitoring device Product Code: GWM Regulation: 21 CFR 882.1620
Draining CSF and monitoring CSF flow from the lateral ventricles or lumbar subarachnoid space is indicated in selected patients to:
-
- Reduce intracranial pressure (ICP), e.g. pre-, intra- or postoperative.
-
- Monitor CSF chemistry, cytology and physiology.
-
- Provide temporary CSF drainage in patients with infected cerebrospinal fluid shunts.
The monitoring of the intracranial pressure (ICP) is indicated in selected patients with:
-
- Severe head injury
-
- Subarachnoid hemorrhage graded III, IV or V preoperatively
-
- Reye's syndrome or similar encephalopathies
-
- Hydrocephalus
-
- Intracranial hemorrhage
-
- Miscellaneous problems when drainage is to be used as a therapeutic maneuver.
Monitoring can also be used to evaluate the status pre- and postoperative for space-occupying lesions.
The Medtronic External Drainage and Monitoring System EDMS is provided as a complete closed system for the drainage and monitoring of cerebrospinal fluid (CSF) flow from the lateral ventricles or the lumbar subarachnoid space. The system is offered in various kit configurations for various clinical applications. The EDMS Drainage Assembly is supplied pre-assembled, sterile and non-pyrogenic in a double wrap package system. A drainage bag with braided cord is also included with each EDMS kit.
The EDMS and components are intended for single (one time) use only and is not designed or intended to be re-used, re-processed, or re-sterilized. Some of the basic features include the following:
- . a patient line stopcock with latex-free injection site and non-distensible patient connection line:
- a graduated chamber and hanging bracket for I.V. pole suspension; ●
- a drainage bag connection line with two slide clamps and latex-free injection site;
- a removable vented drainage bag with approximate volumetric graduations and drainage port; ●
- pressure scale tape.
The provided text does not describe an AI medical device. It pertains to the Medtronic External Drainage and Monitoring System (EDMS), which is a physical device for draining and monitoring cerebrospinal fluid. Therefore, the questions related to AI device performance metrics, such as ground truth establishment with experts, MRMC studies, or standalone algorithm performance, are not applicable.
However, I can extract information related to the acceptance criteria and the study that proves the device meets those criteria for the Medtronic EDMS.
Acceptance Criteria and Performance for Medtronic External Drainage and Monitoring System (EDMS)
The Medtronic EDMS underwent bench testing to demonstrate its safety and effectiveness, particularly addressing changes made to the disposable drainage bag.
1. Table of Acceptance Criteria and Reported Device Performance:
Test | Acceptance Criteria Summary | Reported Device Performance |
---|---|---|
Visual and Dimensional Inspection | Printed graduations must meet volumetric capacity (volumetric graduations are approximate). | The EDMS device met the acceptance criteria for visual and dimensional inspection. |
Leakage of Drainage Bag | The drainage bag must withstand being inverted without leaking. | The EDMS device met the acceptance criteria for drainage bag leakage. |
Flow Initiation Pressure | Pressure at which flow initiates for each drainage bag should meet specified criteria (details not provided in text). | The EDMS device met the acceptance criteria for flow initiation pressure. |
Drainage Bag Seal Weld | No leaks in the drainage bag seal weld. | The EDMS device met the acceptance criteria for drainage bag seal weld. |
Tensile Strength of Drainage Bag Inlet Port | Tensile strength of the drainage bag inlet port to failure should meet specified criteria (details not provided in text). | The EDMS device met the acceptance criteria for tensile strength of drainage bag inlet port. |
2. Sample size used for the test set and the data provenance:
- The text does not specify the exact sample size for each bench test conducted.
- The tests were bench tests (laboratory-based testing of the physical device or its components). Data provenance is internal to the manufacturer's testing facility.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- This question is not applicable as the study involved bench testing of a physical medical device, not an AI algorithm requiring expert ground truth for image or data interpretation.
4. Adjudication method for the test set:
- This question is not applicable as there was no expert review or adjudication process for bench testing a physical device.
5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, if so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- This question is not applicable as the device is not an AI-assisted diagnostic or interpretive tool.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- This question is not applicable as the device is not a standalone algorithm.
7. The type of ground truth used:
- The ground truth for the bench tests was based on engineering specifications and established test methods designed to verify the physical properties and functionality of the device components (e.g., verifying volumetric graduations, absence of leaks, strength of seals).
8. The sample size for the training set:
- This question is not applicable as this is not an AI device that requires a training set.
9. How the ground truth for the training set was established:
- This question is not applicable as this is not an AI device that requires a training set.
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